In the paper，I offer some trainings to raise the ability of young geologists for geologic reasoning. I hold that the comparison，correlation and association constitute the basic methodology of geology. Therefore，a good geologist must hold enough geological examples in the mind for comrison and association in interpretation of geological problem. A geologist need to learn the philosophy of science to understading the nature of geology and to select the reseach project that closely round the paradigm. There are a number of problems in Chinese geology，which would be solved by young geologists，such as how meny early Precambrium blocks are there？ What were their original tectonic sittings？ While and by what process they were amalgamated together？ I hope that the raising of these problems will promote the study of geology in China.